When turned on and left, the device cannot be seen via adb. Only fastboot seems to work. In fact, it loads into fastboot regardless of which buttons are pressed.

Although, pressing both VolUp and VolDown does initiate the update process, when dload is present on the SD card. I've tried updating to both B927 and B944, but the pink bar stops at 30%. The sd_update.log contains errors:

QCSBLHD_CFGDATA fail.

OEMSBL_VER_LIST,is_rx_finish=0,is_operate_succ=1,current_operate=2

call dload_machine data process failed,module = QCSBLHD_CFGDATA

CMD=0xf,moduleaddr = 0xf0000000, len_tmp=0x2524

dload_sd_ram_data_proc->(retry >= DLOAD_RETRY) failed!

Also tried flashing the vendor update (success) and the "middle" update (fails). The main update still fails.

Any thoughts? Is there any way to recover this phone?

Failing that, any advice on how to get a repair or replacement from Vodafone? Still under warranty...